Ineffective immunization: Vaccine storage too often fails to meet standards Carmen Heredia Rodriguez Kaiser Health News Friday Feb 15, 2019 at 1:01 AM By correcting one potential error, the Ventura County (Calif.) Health Care Agency accidentally made another — and jeopardized vaccines given to thousands of people in the process. In October 2017, county health officials, concerned that vaccines were getting too warm while being transported to clinics, changed their protocol.